{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "On readmission , 11 patients received therapeutic heparin , which worsened the patients ' clinical condition and , in all 11 cases , decreased the platelet count ( mean at readmission , 143 x 10 ( 9 ) cells / L ; mean nadir after heparin re - exposure , 39 x 10 ( 9 ) cells / L ) ."}
{"Chemical": ["heparin"], "Disease": []}